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| Serial Number | Area Name |
|---|---|
| 1 | Valve body |
| 2 | Diaphragm |
| 3 | Valve cover |
| 4 | Spring |
| 5 | Actuator |
| 6 | Reset Device |
| 7 | Dust cover |
| 8 | Moving iron core |
| 9 | Sealing ring |
The valve is normally open and operates in a holding control mode, remaining open without power during normal operations.
Upon detecting a leak, the alarm system triggers and provides a DC pulse voltage to the solenoid valve. The coil is energized, driving the valve to close rapidly and cut off the gas supply.
No, once the valve closes, it enters a self-locking state. It must be manually opened to reset and resume operation.
The valve is closed by a continuous 3-second DC pulse voltage released from the alarm's capacitor to energize the coil.
The system achieves automatic closing, pulse drive, and manual opening self-holding functions through the interaction of instantaneous electromagnetic force, permanent magnetic force, and spring force.
Key components include the valve body, diaphragm, valve cover, spring, actuator, reset device, dust cover, moving iron core, and sealing ring.
